High-resilience heat-resistant silicone rubber and preparation method thereof

The invention belongs to the technical field of silicone rubber, and particularly discloses high-resilience heat-resistant silicone rubber and a preparation method thereof.The high-resilience heat-resistant silicone rubber is prepared from methyl vinyl silicone rubber raw rubber, white carbon black, gamma-methacryloxypropyltrimethoxysilane, vinyltriethoxysilane, diphenyldihydroxysilane, a heat-resistant agent, hydroxyl silicone oil and hydrogen-containing silicone oil; a vulcanizing agent; the preparation method comprises the following steps: adding the raw materials into a kneading machine, and heating to obtain a rubber compound base rubber; after the base rubber of the rubber compound is cooled, adding a vulcanizing agent on double rollers; and carrying out compression molding on the silicone rubber containing the vulcanizing agent, and carrying out secondary vulcanization to obtain the product. The heat-resistant silicone rubber prepared by the invention can still maintain relatively high mechanical prope